2005 NISSAN NAVARA Repair Workshop Manual

service schedule remote start fuses fuel consumption radio controls rear entertainment

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NISSAN NAVARA 2005 Repair Workshop Manual ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-29
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HOWTOSWITCHDIAGNOSTICTESTMODE
NOTE:
lIt is better to count the time accurately with a clock.
lIt is impossible to switch the diagnostic

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NISSAN NAVARA 2005 Repair Workshop Manual EC-30
ON BOARD DIAGNOSTIC (OBD) SYSTEM
How to Erase Diagnostic Test Mode II (Self-diagnostic Results)
1. Set ECM in Diagnostic Test Mode II (Self-diagnostic results). Refer toEC-29, "How to Set Diagno

EC-30
ON BOARD DIAGNOSTIC (OBD) SYSTEM
How to Erase Diagnostic Test Mode II (Self-diagnostic Results)
1. Set ECM in Diagnostic Test Mode II (Self-diagnostic results). Refer toEC-29, "How to Set Diagnostic Test
Mode II (Self-diagnostic Results)".
2. Fully depress the accelerator pedal and keep it for more than 10 seconds.
The emission-related diagnostic information has been erased from the backup memory in the ECM.
3. Fully release the accelerator pedal, and confirm the DTC 0000 is displayed.
DIAGNOSTIC TEST MODE I — BULB CHECK
In this mode, the MI on the combination meter should stay ON. If it remains OFF, check the bulb. Refer toEC-
354, "MI&DATA LINK CONNECTORS".
DIAGNOSTIC TEST MODE I — MALFUNCTION WARNING
These DTC numbers are clarified in Diagnostic Test Mode II (SELF-DIAGNOSTIC RESULTS)
DIAGNOSTIC TEST MODE II — SELF-DIAGNOSTIC RESULTS
In this mode, the DTC is indicated by the number of blinks of the MI as shown below. A DTC will be used as an
example for how to read a code.
A particular trouble code can be identified by the number of four-digit numeral flashes. The “zero” is indicated
by the number of ten flashes. The length of time the 1,000th-digit numeral flashes on and off is 1.2 seconds
consisting of an ON (0.6-second) - OFF (0.6-second) cycle.
The 100th-digit numeral and lower digit numerals consist of a 0.3-second ON and 0.3-second OFF cycle.
A change from one digit numeral to another occurs at an interval of 1.0-second OFF. In other words, the later
numeral appears on the display 1.3 seconds after the former numeral has disappeared.
A change from one trouble code to another occurs at an interval of 1.8-second OFF.
In this way, all the detected malfunctions are classified by their DTC numbers. The DTC 0000 refers to no mal-
function. (SeeEC-6, "
INDEX FOR DTC")
How to Erase Diagnostic Test Mode II (Self-diagnostic Results)
The DTC can be erased from the back up memory in the ECM by depressing accelerator pedal. Refer toEC-
29, "How to Set Diagnostic Test Mode II (Self-diagnostic Results)".
lIf the battery is disconnected, the DTC will be lost from the backup memory within 24 hours.
lBe careful not to erase the stored memory before starting trouble diagnoses.
MI Condition
ON When the malfunction is detected.
OFF No malfunction.
PBIA3905E

Page 1011 of 3171

NISSAN NAVARA 2005 Repair Workshop Manual ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-31
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Relationship Between MI, DTC, CONSULT-II and Driving PatternsEBS01KCS
*1: When a malfunction is detected, MI
will light up.*2: MI will

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NISSAN NAVARA 2005 Repair Workshop Manual EC-32
ON BOARD DIAGNOSTIC (OBD) SYSTEM
DRIVING PATTERN A
lThe counter will be cleared when the malfunction is detected regardless of (1) - (4).
lThe counter will be counted up when (1) - (4) are satis

Page 1013 of 3171

NISSAN NAVARA 2005 Repair Workshop Manual TROUBLE DIAGNOSIS
EC-33
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TROUBLE DIAGNOSISPFP:00004
Trouble Diagnosis IntroductionEBS01KCT
INTRODUCTION
The engine has an ECM to control major systems such as fuel injec-
tion

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NISSAN NAVARA 2005 Repair Workshop Manual EC-34
TROUBLE DIAGNOSIS
WORK FLOW
*1 If time data of “SELF-DIAG
RESULTS” is other than “0”, per-
formEC-70, "
TROUBLE DIAGNO-
SIS FOR INTERMITTENT
INCIDENT".*2 If the incident cannot be verifi

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NISSAN NAVARA 2005 Repair Workshop Manual TROUBLE DIAGNOSIS
EC-35
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Description for Work Flow
DIAGNOSTIC WORK SHEET
There are many operating conditions that lead to the malfunction of
engine components. A good grasp of

TROUBLE DIAGNOSIS
EC-35
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Description for Work Flow
DIAGNOSTIC WORK SHEET
There are many operating conditions that lead to the malfunction of
engine components. A good grasp of such conditions can make trou-
bleshooting faster and more accurate.
In general, each customer feels differently about an incident. It is
important to fully understand the symptoms or conditions for a cus-
tomer complaint.
Utilize a diagnostic worksheet like the one shown below in order to
organize all the information for troubleshooting.
STEP DESCRIPTION
STEP IGet detailed information about the conditions and the environment when the incident/symptom occurred using the
EC-35, "
DIAGNOSTIC WORK SHEET".
STEP IIBefore confirming the concern, check and write down (print out using CONSULT-II) the DTC and the freeze frame
data, then erase the DTC. The DTC and the freeze frame data can be used when duplicating the incident at STEP III
&IV.RefertoEC-27
.
If the incident cannot be verified, performEC-70, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
Study the relationship between the cause, specified by DTC, and the symptom described by the customer. (The
“Symptom Matrix Chart” will be useful. Refer toEC-42
.) Also check related service bulletins for information.
STEP IIITry to confirm the symptom and under what conditions the incident occurs.
The “DIAGNOSTIC WORK SHEET” and the freeze frame data are useful to verify the incident. Connect CONSULT-II
to the vehicle in DATA MONITOR (AUTO TRIG) mode and check real time diagnosis results.
If the incident cannot be verified, performEC-70, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
If the malfunction code is detected, skip STEP IV and perform STEP V.
STEP IVTry to detect the DTC by driving in (or performing) the DTC Confirmation Procedure. Check and read the DTC and the
freeze frame data by using CONSULT-II.
During the DTC verification, be sure to connect CONSULT-II to the vehicle in DATA MONITOR (AUTO TRIG) mode
and check real time diagnosis results.
If the incident cannot be verified, performEC-70, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
In case the DTC Confirmation Procedure is not available, perform the Overall Function Check instead. The DTC can-
not be displayed by this check, however, this simplified “check” is an effective alternative.
The “NG” result of the Overall Function Check is the same as the DTC detection.
STEP VTake the appropriate action based on the results of STEP I through IV.
If the malfunction code is indicated, proceed to Trouble Diagnosis for DTC PXXXX.
If the normal code is indicated, proceed to the Basic Inspection,EC-38
. Then perform inspections according to the
Symptom Matrix Chart. Refer toEC-42
.
STEP VIIdentify where to begin diagnosis based on the relationship study between symptom and possible causes. Inspect the
system for mechanical binding, loose connectors or wiring damage using (tracing) Harness Layouts.
Gently shake the related connectors, components or wiring harness with CONSULT-II set in “DATA MONITOR (AUTO
TRIG)” mode.
Check the voltage of the related ECM terminals or monitor the output data from the related sensors with CONSULT-II.
Refer toEC-52
orEC-66.
The Diagnostic Procedure in EC section contains a description based on open circuit inspection. A short circuit
inspection is also required for the circuit check in the Diagnostic Procedure. For details, refer toGI-24, "
How to Per-
form Efficient Diagnosis for an Electrical Incident", “Circuit Inspection”.
Repair or replace the malfunction parts.
If the malfunctioning part cannot be detected, performEC-70, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT".
STEP VIIOnce you have repaired the circuit or replaced a component, you need to run the engine in the same conditions and
circumstances which resulted in the customer's initial complaint.
Perform the DTC Confirmation Procedure and confirm the normal code (DTC P0000) is detected. If the incident is still
detected in the final check, perform STEP VI by using a different method from the previous one.
Before returning the vehicle to the customer, be sure to erase the unnecessary (already fixed) DTC in ECM. (Refer to
EC-27
.)
SEF907L

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NISSAN NAVARA 2005 Repair Workshop Manual EC-36
TROUBLE DIAGNOSIS
Worksheet Sample
MTBL0533

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